Question

We________TV when the alarm________off．

1. A.
   watched，went
2. B.
   were watching，went
3. C.
   were watching，was going
4. D.
   watched，was going

Answer 1

B
分析：句意是“當(dāng)警報響時，我們在看電視。”由when引出時間狀語從句時，兩個表示過去的動作如果一個是持續(xù)性，一個是短暫性動作，那么持續(xù)性動作用過去進(jìn)行時，短暫性動作用一般過去時。were watching是持續(xù)性動作，went off是短暫性動作。